Magnetic Field Calculations in Physics

What is the magnetic field strength 21 cm away from a linear wire?

If a 340-mA current is moving down a linear wire, what is the magnetic field 21 cm away from the wire?

Magnetic Field Strength at a Distance from a Linear Wire

The magnetic field strength at a distance from a linear wire is given by the Ampere's law formula: B = μ₀I / (2πr).

To calculate the magnetic field strength at a distance of 21 cm from the wire carrying a current of 340 mA, we can use the equation B = μ₀I / (2πr). Substituting the values, we get: B = (4 x 10⁻⁷ T. m/A * 0.34 A) / (2 * 3.14 * 0.21 m)

Calculating the above expression will give the magnetic field strength at a distance of 21 cm from the wire.

What is the magnetic field inside of a solenoid with 250 turns/cm carrying a 340-mA current?

What is the magnetic field inside of a solenoid with 250 turns/cm that carries a 340-mA current?

Magnetic Field Inside a Solenoid

The magnetic field inside a solenoid is calculated using the formula: B = μ₀nI.

For a solenoid with 250 turns/cm carrying a current of 340 mA, we can use the formula B = μ₀nI. Plugging in the values, we get: B = 4 x 10⁻⁷ T. m/A * 250 turns/cm * 0.34 A

By calculating the above expression, we can determine the magnetic field's strength inside the solenoid.